Locally dualizable modules abound
Commutative Algebra
2024-01-05 v1 Representation Theory
Abstract
It is proved that given any prime ideal of height at least 2 in a countable commutative noetherian ring , there are uncountably many more dualizable objects in the -local -torsion stratum of the derived category of than those that are obtained as retracts of images of perfect -complexes. An analogous result is established dealing with the stable module category of the group algebra, over a countable field of positive characteristic , of an elementary abelian -group of rank at least 3.
Cite
@article{arxiv.2401.02350,
title = {Locally dualizable modules abound},
author = {Jon F. Carlson and Srikanth B. Iyengar},
journal= {arXiv preprint arXiv:2401.02350},
year = {2024}
}
Comments
7 pages